Things I liked:EASY TO INSTALL AND WORKS LIKE A CHARM. THE LONGER HOSE IS A REAL ASSET, ESPECIALLY WHEN DOING THIS BY YOURSELF W/O A GUN REST.Things I would have changed:NOTHING FOR NOW.What others should know:BEFORE INVESTING IN THIS,MAKE SURE YOU HAVE AT LEAST ONE PLACE THAT CAN FILL TO 3000 PSI AND HOPEFULLY TO 4500 OR BETTER. IF YOU HAVE THAT, YOU CAN MAKE A DECISION TO GET THE SCUBA TANK WITH THIS ADAPTER, ETC OR YOU CAN DOUBLE THE DOLLARS FOR THIS ADAPTER, SCUBA TANK AND HAND PUMP (IF YOU HAVE ONE) AND GET THE CARBON FIBER TANK THAT FILLS TO 4500 PSI. (ABOUT $700) THIS IS PROBABLY WHAT I WILL DO IN THE LONG RUN.